Rails Unicorn + Nginx image Question

I'm using the DigitalOcean Rails pre-configured image. I'm trying to change the default rails application from /home/rails to /home/app/demo/current .
In my /home/unicorn/unicorn.conf file, I changed the working directory to reflect 'home/app/ricks/current' . I also changed my /etc/default/unicorn
APP_ROOT to reflect /home/app/demo/current
I then restarted nginx by stopping and then reloading it. I also restarted my droplet.
For some reason, when I navigate over to my droplet's assigned IP address, I still see the default 'Welcome to Rails' page that came with the droplet, instead of my application which resides in /home/app/demo/current
Can you please explain to me what I am doing wrong or what I need to do in order to get my application to show up?